ENGINE TUNE-UP - Cooling System 2 -3 Fig. 2-5 COOLING SYSTEM COOLANT LEVEL CHECK and ~ REPLENISHMENT If coolant is low, fill resorvoir tank up to " Fu ll" line. Fig. 2-6 COOLANT QUALITY CHECK There should not be any excessive' deposit of rust or scales around th e radiator cap or radiator filler hole, and the coolan t should also be free from oil . Replace the coolant if excessively dirty . ~ Fig. 2-7 INSPECTION of COOLING SYSTEM PARTS There shou ld be no defects such as listed below : ~ 1. Damage, deterioration, or loose clamps in radiator hoses, water hoses. 2. Leakage due to corrosion or damage in radiator core. 3. Leakage due to loose water drain cock . 4. Leakage from water pump . Fig.
2-8 ~ 5. Faulty operation of radiator cap. Inspect the radiator cap pressure regulating and vacuum valves fo r spring te nsi-o n and seating condit ion. If the valve opens at a pr ess ure level below the specifi ed value or is otherw ise de fecti ve, replace the radiator cap; ' Valve opening pressure limit 0.6 kg/cm 2 ( 8.5 psi) Standard . 0.9 kg/cm 2 ( 12.8 psil